This research
sought to determine whether token reinforcement could
improve an elderly heart patient's adherence to his complex
medical regimen. Using a multiple-baseline and reversal
single-case experimental design, it was demonstrated that
the reinforcement contingency was responsible for increasing
his walking to more than twice per day, consumption of
orange juice to an average of almost three glasses per day,
and consumption of three separate pills three times per day.
A cessation of angina and an improvement in family
relationships also occurred.